Automatic teaih-stopping device



1 27 F. MIGNOGNE AUTOMATIC TRAIN STOPPING DEVICE IN V EN TOR.

Filed' Jan. 22, 1926 patented Get. 4, 1927.

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I FRANCESCO MIIGNOGhiE, OF GREENSBUBG, PENNSYLVANIA.

AUTOMATIC TRAIIISTOPPII TG DEVICE.

. Application filed January 22, 1928. Serial No. 82,989.

This invention relates generally to automatic train stopping devices,the invention having more particular reference to a novel type ofautomatic train. stopping device. Theinvention has for an object theprovision of an improved automatic train stopping device which willprevent collisions.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

Fig. 1 of the drawing shows my improved automatic train stopping devicesas applied to an electric locomotive.

Fig- 2 of the drawing is a front elevational detail view of my improveddevice.

Fig. 3 is a sectional view taken on the line 33 of Figure 2.

Fig. 4 is a diagrammatic view of my improved device.

As here embodied my improved automatic train stopping device comprises aframe element 10 having rotatively attached thereto wheels 11 providedwith flanges 12, and having suitably attached thereto a spring shoe 10to insure contact with the supplementary rail 17, The lever 13 isconveniently pivoted at 14 to the locomotive, and attached to the i'rameelement 10 at 15, and having attached at or near one extremity a cable26 being also attached to a conveniently located lever 27 having pawl toengage with the ratchet wheel 28 or any other similar suitable device,or any other suitable means of raising the frame element 10, and aspring 16 having one extremity attached to the lever 13 and the otherextremity conveniently attached to the locomotive, as a means ofinsuring the contact of the wheels 11 with the supplementary rail 17 orany other suitable strip, preferably attached to one of the rails, andinsulated therefrom as designated by the numeral 18 on the accompanyingdrawing.

Referring in particular to Figure a of the accompanying drawing, abattery 19, or any other suitable source of electric current is providedwith a suitable wire 20 conveniently attached to the lever 13, as shownin Figure 2 of the accompanying drawing, and a switch 21, as a means ofcausing an electric current to pass through the supplementary rail 17, aretarded relay 22 or any suitable electrical device being convenientlywired to another frame element 10 as designated by having a switch 2 1,as a means of applying the brakes of the locomotive by any suitabledevice attached thereto at 25. it should be understood that the saidcurrent passed through the supplement rail 17 will be of suiiicientcapacity to cause the retarded relay 22 to function at any chosendistance from the said battery or suitable source of electric current,it should be further understood that each locomotive will be providedwith two of my improved devices as above described, each of the saiddevices functioning on a separate insulated supplementary rail. it isobvious that 1 have provided an automatic train stopping device whichwill prevent collisions by applying the brakes, when the trains equippedwith my improved device come within a certain distance of each other.

it will be also understood that my improved device may be made or anysuitable materials such as ordinarily used in devices or this nature.

\rVlllle i have above described the pre feri'ed rorm, construction andarrangement of the several elements employed, it will be understood thatthe device is, nevertheless, Stktleifllluifi of considerableinodilication tiiereiii, and 1 therefore reserve the privilege ofresorting to all such changes as may be Iairly embodied within thespirit and scope or the invention as claimed.

having thus described my inventiom what 1 claim as new and desire toprotect by Letters Patent of the United States is as follows 1. Acontact shoe comprising a frame, spaced wiieels rotatively mounted onthe bottom of said frame adapted to roll on a rail, a lever attached tosaid frame at the top thereof, said lever being pivotally attached atone eny. to a locomotive, a spring attached at one end to the free endof said lever and at its other end to said locomotive for retaining saidwheels in engagement with said rail, a frictional contact membercomprising resilient material mounted on said frame adapted tofrictionally engage said rail and a cord attached to the free end ofsaid lever for rotating said frame about the pivot of said lever todisengage said resilient contact from said rail while retaining one ofsaid wheels in engagement with said rail for guiding the replacement ofsaid conmounted on the left hand side member of said frame adapted tofriotionally engage said ail, and a cord attached to the free end ofsaid lever for rotating said frame to raise said side member fordisengaging said contact member from said rail While retaining the wheelof the other side member of the frame in Contact with said rail to guidethe replacement of said rail by the action of said spring when the cordis released.

In testimony whereof I have afiixed my signature.

FRANCESCO MIGNOGNE.

